David Brownell wrote: >> As some of you know, but perhaps not Eric, I am creating a driver that >> is a major expansion of pxa2xx_spi.c, so I am trying to stay involved >> with pxa2xx_spi.c development to limit structural changes that might >> make my work more difficult. This may be a fool's errand, because my >> changes are so significant that they likely never will be accepted into >> the driver. > > At one point we had discussed having something like an SSP/DMA engine > driver, on top of which could live various protcols ... SPI, maybe I2S > for Alsa-SOC (if AC97 isn't appropriate), data capture/streaming stuff > (which ISTR was more your interest) ... like that?
I have a very narrow view at that moment, and my understanding of the kernel is especially narrow. I don't know enough about what you are suggesting to offer an opinion. It might work out. Yes, streaming data is my interest. >> Possibly a change to Documentation/spi/pxa2xx should be made to >> highlight the ways in which use of SSPFRM differs from use of a GPIO. >> Maybe I will take a shot at that with this patch. > > Separate, please. I'll repost the relevant patch from Vernon ... that > seems like it should become a part of that. Interesting. OK. Vernon slipped a note or two about DMA length, related to one of the two patches you will get today, so maybe his would work for the SSPFRM issue, too. > For "A && B", it's guaranteed that A runs before B; > both values are evaluated as nonzero/true vs zero/false. > > C has worked that way forever. Hmmm... OK. I guess I have spent the last 28yrs trying to avoid reliance on that for naught. :-) -- Ned Forrester [EMAIL PROTECTED] Oceanographic Systems Lab 508-289-2226 Applied Ocean Physics and Engineering Dept. Woods Hole Oceanographic Institution Woods Hole, MA 02543, USA http://www.whoi.edu/sbl/liteSite.do?litesiteid=7212 http://www.whoi.edu/hpb/Site.do?id=1532 http://www.whoi.edu/page.do?pid=10079 ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ spi-devel-general mailing list spi-devel-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/spi-devel-general
